Unreal Engine Issues
Unreal Engine Issues
Start up movies will only play for a second or two and then the level will load.
UE - Platform - Mobile - Oct 27, 2014If you place a mp4 file into the startup movies section of the Project Settings, the movie will only play for a brief time before the level loads. If you play the play the level with the startup m ...
Objects parented to a Destructible Mesh within a bp will not follow if the DM is simulating physics
UE - Simulation - Physics - Destruction - Dec 17, 2014Objects parented to a Destructible Mesh within a bp will not follow if the DM is simulating physics. ...
IgnoreActorWhenMoving node doesn't work if the actor variable is set per instance
UE - Gameplay - Apr 30, 2015IgnoreActorWhenMoving node doesn't work if the actor variable is set per instance. ...
Renaming an AnimNotify does not redirect event nodes to the new name
OLD - Anim - Apr 10, 2015Renaming an animNotify in the Animation Notifies window (Window>Animation Notifies) does not redirect existing event nodes to the new name. It also doesn't appear under the Right Click menu in the ...
Setting LOD Group for Foliage wipes previous LOD data
Tools - Feb 4, 2015If you import a mesh with LODs and assign the LOD Group for Foliage the mesh will import with all appropriate LODs. If you do not select a LOD group and after decide you want to change the LOD Grou ...
[CrashReport] UE4Editor_UnrealEd!TArray<TScriptDelegate<FWeakObjectPtr>,FDefaultAllocator>::Find() [array.h:784]
UE - Gameplay - Aug 22, 2017This is a regular crash occurring in 4.17. It may be a regression as there is no immediate evidence of it occurring in prior releases. Users have not provided any descriptions of their actions whe ...
Hitting a breakpoint in widget blueprint while running PIE with Selected Viewport mode blocks entire editor rendering
UE - Editor - UI Systems - UMG - Oct 6, 2023This problem does not occur when running PIE with New Editor Window mode. ...
Audio Does Not Play Back Correctly when entering an Audio Volume with a Submix Send that is PreAttenuation with a Submix using Convolution Reverb
UE - Audio - Oct 24, 2023Entering an Audio Volume that has a Submix Send set to Pre Distance Attenuation and using a Convolution Reverb causes severe audio glitching. Does not occur if Send is Post Distance Attenuation. Doe ...
Input Actions bound to Any Key become unresponsive after mouse scroll until scrolled again
UE - Gameplay - Input - Mar 28, 2025In UE latest release (5.5 launcher version), Enhanced Input Actions mapped to "Any Key" stop responding after scrolling the mouse wheel. Specifically, scrolling either up or down disables the Any Ke ...
World Position Offset invalidates Point Lights Entire Virtual Shadow Map Cache when light frustrum is only overlapping a small portion of the mesh
UE - Graphics Features - Oct 22, 2025When adding a spotlight to the scene it does not correctly use cached virtual shadow map pages when the spotlight overlaps a mesh using WPO. This can be most easily observed by entering 'Cached Pag ...